Machine for making rubber goods.



M. H. CLARK.

MACHINE FOR MAKING RUBBER GOODS.

APPLICATION FILED JAN. 10. 1913.

1,218,983. Patented Mar. 13, 1917.

15 SHEETS-SHEET lv 1 BY 9% z A TTORNEY/ M. H. CLARK.

MACHINE FOR MAKING RUBBER GOODS.

APPLICATION FILED IAN. H). 1913- I 5 SHEETS-SHEET 2- ATTORNEYJ I M. H. CLARK.

MACHINE FOR MAKING RUBBER GOODS.

APPLICATION FILED JAN. 10. I913.

Patented Mar. 13, 1917.

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M. H. CLARK.

MACHINE FOR MAKING RUBBER GOODS.

APPLICATION FILED lAN.l0.19l3.

1,21 8,983. P51611101 Mar. 13, 1917.

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APPLICATION FILED 11.10.1913.

Patented Mar. 13, 1917.

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MACHINE FOR MAKING RUBBER GOODS.

APPLICATION FILED JAN-10,1913- 1,218,983. Patented Mar.13,1917.

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MACHINE FOR MAKING RUBBER GOODS.

APPLICATION FILED JAN-10.1913.

1,21 8,983 Patented Mar. 13, 1917.

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MACHlNE FOR MAKING RUBBER GOODS.

APPLICATION FILED JAN. 10, 1913.

1,218,983. Patented Mar. 13, 1917.

I5 SHEETS-SHEET 8- WITNESSES: INVENTOR.

$4 A TTORNEYd M. H. CLARK. MACHINE FOR MAKING RUBBER GOODS.

APPLICATION FILED 1AN.10,I9I3- 1,218,983. Patented Mar. 13, 1917.

15 SHEETS-SHEET 9.

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MACHINE FOR MAKING RUBBER GOODS.

APPLICATION FILED JAN. 10. 913.

1,21 8,983. Patented Mar. 13, 1917.

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BY r Y M. H. CLARK.

MACHINE FOR MAKING RUBBER GOODS.

APPLICATION FILED JAN.10. 1913.

1,218,983. Patented Mar. 13, 1917.

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MACHINE FOR MAKING RUBBER GOODS.-

APPLICATION FILED JAN-10.1913- Patented Mar. 13, 1917.

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MACHINE FOR MAKING RUBBER GOODS. APPLICATION FILED 1AN.\0. 1913.

1 ,21 8,983. Patented Mar. 13, 1917.

I5 SHEETS-SHEET l3- WITNESSES: INVENTOR.

Maw ZYW/KMM A TTORNEYV M. H. CLARK.

MACHINE FOR MAKING RUBBER GOODS.

APPLICATION FILED IAN. I0. I913.

1,218,983. Patented Mar. 13, 191 7.

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HMACHINE FOR MAKING RUBBER GOODS.

APPLICATION FILED JAN. 10, 1913.

15 SHEETS-SHEET )5- Patented Mar. 13,1917.

INA fl? J'OLE qwibmeooco V HEEL Pl6 Qwwewloz UNITED STATES PATENT OFFICE.

MYRON H. CLARK, OF MALDEN, MASSACHUSETTS, ASSIGNOR TO THE GOODYEARS METALLIC RUBBER SHOE COMPANY, A CORPORATION OF CONNECTICUT.

MACHINE FOR MAKING RUBBER GOODS.

Specification of Letters Patent.

Patented Mar. 13, 1917.

Application filed January 10, 1913. Serial No. 741,213.

To all whom it may concern:

Be it known that I, MYRON H. CLARK, a citizen of the United States. residing at Malden, in the county of MiddleseX and State of Massachusetts, have invented certain new and useful Improvements in Machines for Making Rubber Goods, of which the following is a specification.

My invention relates to new and useful improvements in machines for making rubber goods, and more particularly rubber footwear and rubber soled footwear, and is applicable to all forms of rubber soled footwear, irrespective of the construction of the upper, that is it is applicable for the manufacture of over-shoes of all kinds in which the upper consists of rubber or a rubbercoated fabric, or to arctics, gaiters, or tennis shoes. in which the upper consists of uncoat- 20 ed fabric, and to rubber boots and similar "footwear. The objects of the invention are primarily to provide a machine which will mechanically perform operations in the manufacture of rubber footwear hitherto exclusively performedby hand. A further object is to provide a machine wherein the quality of the footwear produced will be higher than that hitherto produced by hand, and in which the high quality will be uniform.

Further objects will appear during the detailed description to follow hereinafter.

The invention consists in the construction and the arrangement of parts in operative combination to be fully described hereinafter, and the novelty of which will be particularly pointed out and distinctly claimed.

Before proceeding with a detailed description of my invention, I desire to state that although I describe it hereinafter as applicable for the construction of rubber soled shoes known as arctics. I do not desire to be limited in any way to the particular details of the machine making it'applicable for use on arctics, as the construction and combinations shown and described are applicable not only for the manufacture of arctics, but may be used either in part or in whole for the manufacture of all types of rubber soled shoes, and other articles consisting of layers of fabric and rubber which are successively built up. and which must be subjected to pressure imorder to properly unite the same.

I have fully and clearly illustrated my invention in the accompanying drawings to be taken as a part of this specification, and wherein Figure 1 is a plan view of one end of the -machine showing parts broken, away between mechanisms which operate on the shoe.

Fig. 2 is a plan view of that part of the machine forming a continuation of the righthand portion of the part shown in Fig. 1.

Fig. 3 is a plan view of that part of the machine forming a continuation of the right-hand part of Fig. 2.

Fig.4 is a plan view of one extreme end of the machine forming a continuation of the right-hand part of Fig. 3.

Fig. 5 is a broken view in side elevation of the part of the machine shown in Fig. 1.

Fig. 6 is aview inside elevation corresponding to the view shown in Fig. 2 and constituting a continuation of the righthand portion of the View shown in Fig. 5.

Fig. 7 is a view in side elevation of that part of the machine shown in Fig. 3 and constituting a-continuation of the right hand stituting a continuation of the right-hand side of the part shown in Fig. 7.

Fig. 9 is a section on the line9-9 of Fig. 1.

Fig. 10 is an enlarged side elevation of the part of the machine shown in Fig. 9 and the central portion of Fig. 5. p

v Fig. 11 is a vertical central longitudinal section through the rolls shown in Figs. 9 and 10..

Fig. 12 is an enlarged plan view of one end of the roll mechanism shown in Figs. 9, 10 and 11.

Fig. 13 is a detail view in front elevation of the roll-supporting guide and the means for adjusting the same.

Fig. 14 includes views in elevation showing the sequence of rolls from beginning to end in the mechanism illustrated in Figs. 9, 10,11 and 12.

.Fig. 15 is a vertical transverse section on the line 15. 15 of Fig. 2. certain parts being omitted for the sake of clearness.

Fig. 16 is a vertical transverse section on the line 16, 16 of Fig. 2. certain parts being omitted for the sake of clcarncss.

Fig. 17 is a longitudinal central sectional view through one of the guides for the rolls illustrated in Figs. 2, 4, 6, 8,15 and 16.

tion of the roller mechanism shown in Figs.

4: and 8.

Fig. 22 is a plan view of one of the lastsupporting cars.

Fig. 23 is a view in side elevation of the construction shown. in Fig. 22.

Fig. 24 1s a view in end elevation looking from the right of Figs. 22 and 23.

Fig. 25 is a view in plan of a chair for supporting'a last upon which is to be formed an arctic.

Fig. 26 is a view in side elevation of the construction shown in Fig. 25.

Fig. 27 is a View in end elevation of the construction shown in Figs. 25 and 26.

Fig. 28 is a plan view of a chair for supporting a last for gaiters.

Fig. 29 is a view in side elevation of the construction shown in Fig. 28.

Fig. 30 is a plan view of a marking device for marking sizes on the shoes made by the machine.

Fig. 31 is a view in front elevation of the construction shown in Fig. 30.

Fig. 32 is a. View in side elevation of the construction shown in Figs. 30 and 31.

Fig. 33 is a detailed sectional view of the connection between two parts of one of the plunger bars.

Fig. 3 1 is a view of a last, supporting an arctic, parts of the shoe being cut away and laid back to expose underlying parts, so as to make the construction ofthe shoe clearly understood.

Fig. 35 is a plan view of a stop mechanism for controlling the motive power for driving the conveyer; and

Fig. 36 is a view in side elevation of said stop mechanism.

I I will now proceed to describe the preferred embodiment of my invention herein shown in detail. for the purpose of clearness, setting forth the progress of manufacture of a form of rubber soled shoe, and describing the construction and operation of the various parts and mechanisms in the order in which they successively perform the steps of manufacture.

In the embodiment of the invention hereinafter described. and which appears to me at the present time to be the best manner of carrying the same into effect. I have shown a plurality of mechanisms. each for performing separate and distinct operations in the manufacture of rubber soled shoes, said mechanisms being designated generally at A, B, C, D, E and F for performing the several functions in manufacturing arctics, although it will be understood that these mechanisms and their functions. as hereinafter set forth in detail, may be altered in their sequence as the construction of the article upon which they operate may dictate. Means is provided for successively presenting the lasts or forms to said mechanisms.

wise of the machine.

Running lengthwise of the machine beneath the said passage, is an endless conveyer, to be hereinafter described. adapted to carry upon the upper run thereof. the lasts or forms .upon which the shoes or other articles are to be formed. to present said lasts or forms to the several mechanisms, the upper run of the conveyer traveling below the level of the side rails of the machine frame. The lasts. if lasts are the forms used, are so supported that the toes thereof point in the direction of travel of the upper run of the conveyer.

I do not deem it necessary to go into a detailed description of the shoe construction,

but have indicated on Fig. 34 of the drawings herein the names of the various parts so that the construction will be understood.

In constructing the shoes a .last of the desired size has applied thereto the lining and the inner sole of the shoe, and a toe-strip is applied overlapping the lining and said inner sole, and a rag sole is applied lengthwise of the bottom of the last so as to overlap the inturned edge of the toe-strip. The last is then placed on the conveyer by the operator and is presented to the mechanism designated generally at A. This mechanism includes a set of rollers designed to roll the rag sole. the inner sole and the inturned edge of the toe-strip firmly together. and the rollers are preferably constructed and arranged so as to exert the pressure first centrally and longitudinally of the sole. and then laterally toward the edges thereof. The rollers in their arrangement may take a number of forms. but I prefer the form which I have illustrated in the drawings which has proved satisfactory in practice. This arrangement. referring particularly to Fig. 14, comprises a primal roller 5, arranged to revolve on a horizontal axis so as l id to contact with the longitudinal central portion of the sole when the latter passes thereunder. Arranged behind the roller is a second roller 6 of substantially the same formas said first roller, but which is arranged to revolve in a path to one side of the roller 5 so that right and left lasts Will be rolled substantially down the center portion of the sole.

Arranged in rear of the roller 6 is a thirdroller 7, of a length greater than the length of the rollers 5. 6, above described, that is preferably greater than the distance from the extreme left end of the roller 5 to the extreme right end of the roller 6, said roller 7. because of its greater length, being adapted to roll a greater area down the center of the sole than the two first-mentioned rollers together. so as to effectively unite the rag sole and the inner sole. This third roller 7 is preferably of considerably greater diameter than either of the rollers 6. so as to insure proper contact with the forward lower end of the toe. which is at a level below, the ball of the sole and below the lower level of rollers 5, 6. This third roller 7 has its axis of rotation above the advancing toe portion of the last a sufficient distance that the last may freely pass thereunder without danger of striking the shaft of said roller. This roller 7 is also arranged to have its lower surface below the lower level of the first two rollers 5. 6, so as to insure proper contact with the forward lower end of the top, which is at a level below the ball of the so e.

In rearof the roller 7 is a fourth roller 8 arranged to rotate on anaxis parallel with disposed rollers are arranged to have their axes of rotation on substantially the same level when a last is not passing through the machine.

The rollers 5, 6. 7 and 8, just described, serve to roll down and unite the central portion of the sole lining, inner sole andrag sole for practically the whole-width of the shank. and substantially all of the heel, and. in order that they may freely contact with the sole. shank and heel and move toward and away from the same as the latter pass beneath the same, I mount or journal them in supports whereby they positively engage the materials on the last. but may adjust themselves to conform to the contour of the sole. shank and heel as the last passesbe neath them. I accomplish this by arranging the said rollers so that they gravitate into contact with the sole. and for this purpose mount each of the roller shafts in bearings 9 mounted in end pieces 10 of a frame 11,

-to roll the] sole from the central portion a plurality of rollers 26 for exerting presand lower guide rollers 12, 13, adapted to travel in vertical grooves 11, 15 (see Fig. 1) V in vertically alining channel guide members 16 mounted on the frame at the opposite 7@ ends of the rollers. The guide members 16 are mounted on horizontal supporting bars 17. each carrying brackets 18 supported on collars 18 fixed on vertical, rotatable columns 19 threaded into seats 19 said col- .5 umns carrying at their upper ends sprocket wheels 20 fixed thereto. all of which sprocket wheels are engaged by an endless sprocket chain 21 whereby said columns may be simultaneously rotated to lift the bars 17 and so thereby lift the frames 11 and adjust the height of the rollers 'above the path of travel of the'last. The columns may each be provided with check nuts 20. 21 to fix the position of the frames and hold the columns 35 against rotation. The downward movement of the roller-carrying frames is limited by shoulders 22 at the lower ends of the respective guide pieces 16. Means is provided for weighting each of the frames 11 so that the desired contact between the roller carried thereby and the shoe may be obtained. 1 accomplish this by providing on the upper portion of each frame supporting bars 23 adapted to support one or more weights 21 having apertures 25 to receive said bars.

In rear of the rollers 6. 7. 8. above described. and mo inted in frames traveling in guides. similar to those above described. are

sure on the side edge portions of the sole, shank and heel not united by the rollers first described. due to the transversecurvature of the sole. Theserollers 26 for rolling the side portions of the sole are supported in 10.5 pairs from the frames 16 by a central bracket 27, the rollers of each pair extending in opposite directions from the bracket and having their axes of rotation inclined from their point of support downwardly in opposite directions and in the same vertical plane so that the contact surfaces of the rollers conform substantially to the transverse curvature of the sole'when the shoe passes thereunder. I provide preferably three sets of such inclined pairs or sets of rollers. the same being arranged to rotate on axes of successively increasing pitch so that the action of the pairs of rollers is successively thereof toward its outer edge. The arrange ment of these rollers just described is clearly illustrated in Fig. 11 and he'right-hand portion of Fig. 14. 1

The frames of these rollers are constructedvand guided in the same manner as those carrying the rollers 6. 7. 8. and the guides therefor are mounted on the frame members so that they may be simultaneously adjusted along With the rollers, 5, 6, 7, 8. 130

I preferably form all of these rollers just described of a resilient or yielding substance such as rubber, so that, when pressed against the sole, they will conform to the curvature of the last and press the sole strongly into engagement with the last so that all the parts of the sole will be properly united.

Any suitable means may be employed for rotating one of the columns 19 so as to adjust the roller-carrying frames, as, for instance, by providing each of the posts at its upper end with a wrench-head 19 adapted to be engaged by a socket wrench 19", as shown at the right of Figs. 11 and 12.

After the last carrying the shoe has passed the rollers of the mechanism A, described, the last is removed from the carrier by an operator and the counter, heelpiece, vamp, quarter, and outer filler or solepiece are applied, the counter, filler and heel-piece being previously cemented so that they will adhere in place; the vamp and quarter have sticky rubber on their inner faces so that they adhere to the lining when applied thereto. The last is again mounted on theendless conveyer and is presented to a second set of rollers B, which may be of substantially the same construction as the first set of rollers embraced in the mechan'sm A heretofore described, and which s rve to roll the outer filler down upon the rag filler. This operation also serves to form a tight joint between the inturned lower edge of the heel-piece, the rag sole and the outer filler. I do not deem it necessary to enter into a detailed description of this set of rollers as it may be, and preferably is, substantially the same as the set A heretofore described. In advance of both of these sets of rollers A, B, and supported by the frame-work of the machine are inwardlyprojecting brackets 28 carrying at their inner ends guide rolls 29, rotating on vertical axes, which operate to engage the sides of the last to center the latter as it is presented to the rolls.

The last, after having passed the set of rollers B, is removed from the carrier and the toe and heel foxing is applied so that the lower edges thereof closely approach and preferably engage the edges of the rag sole and the outer filler. In the form of the arctic described the toe foxing at its upper edge lies over the lower edge of the vamp, and the upper edge of the heel foxing abuts the lower edge of the quarter. These foxings are of soft sticky rubber and adhere to the toe and heel-pieces and to the vamp and quarter, and the last is then replaced on the conveyer and passes to a mechanism C to roll the foxings into position so as to adhere to the parts they overlie. This mechanism comprises a plurality of rollers normally urged toward the last into yielding contact with the shoe thereon, and preferably arranged to rotate on their axes so as to progressively roll from the sole edge of the foxing toward the upper edge thereof.

The arrangement and construction of this third mechanism C, to which the shoes are subjected,is shown 1n plan in Figs. 2 and 20, and in section in Figs. 15 and 16.

I will now proceed with the detailed description of the same: Mounted on the side frames, 3, 4, of the machine and arranged longitudinally thereof are a plurality of hollow pedestals 30, in this instance three on each side of the machine, in which are arranged plungers 31, to the upper end of each of which is pivoted as at 31 a guide member or hearing box 32, through which is adapted to reciprocate a plunger bar 33, the

lower ends of which plunger bars are nor mally located closely adjacent the path of travel of the shoe being formed. The plungers 31 are rotatable in the pedestals 30, and are also movable longitudinally thereof, so

that theheight of the bearing boxes and the direction of the bars 33 may be regulated relative .to the shoe as it passes through the machine. On the lower end of each of these plunger rods 33 is pivoted, as at 34, a'yoke 35 in the arms 36 of which are journaled the gudgeons or pivot pins of rollers 37, the pivotal arrangement being provided so that the yokes may be adjusted or swung relative to the plungers 33 and clamped thereto by the bolts 38, so as to regulate the angle of the contact surface of the rollers relative to the surface they are to contact with, that is the foxings. The pivots 31 preferably consist of clamping bolts 31*, passing through ears on the posts 31, and the bearing boxes respectively, so that the'boxes may be swung to the desired inclination and then clamped rigidly in position to have the rollers 37 in proper relation to the last. The plungers 33 are arranged to reciprocate freely lengthwise of the bearing boxes 32, and at their upper ends carry pins 39 to receive one or more weights 40, to provide for the degree of contact exerted by the rollers upon the last when the latter is subjected to the rollers. It is desirable that the plunger rods 33 have a free and unrestricted movement through the bearing boxes 32, and I therefore provide anti-friction rollers 41 extending transversely of the interior of the boxes and adapted to contact with the plunger rods preferably as shown in Figs. 17, 18 and 19. As shown in the drawings I prefer to employ the rollers 37 in pairs, the rollers of each pair being mounted on opposite sides of the machine so that the last is simultaneously engaged on opposite sides by the rollers of each pair. As shown in Fig. 15 the rollers 37 are arranged with the axes thereof inclined downwardly from the center of the path of travel of the last, the incliuationof the axes of the successive pairs being increased so that the foxings are rolled successively from the sole edge of the last toward the upper edge portion of. the foxing.

curved toe portions and curved heel portions of the last. Referring particularly to Figs. l6 and 20, mounted on a'pivot 42, preferably on the right-hand side *member of the frame, is a swinging arm 43, the free end of which projects across the path of movement of the last and carries at its free end a vertically disposed roller 44, in such position that as the last passes through the machine said roller will engage the foxing on the opposite side of the toe portion from thatside upon which the arm 43 is pivoted, so that as the last advances said arm will swing in the direction of the arrows as shown in Fig. 20 and will wipe around the end of the toe from left to right, to roll the foxing into position. In order to insure the correct swinging movement of arm 43 and roller 44 I provide a small contact roller 45 arranged to be contacted with by the toe of the shoe so that the arm will be swung freely by engagement of the shoe with said contact roller and the shoe. will be-prevented from striking the arm 43 should the toe of the last be deflected toward the right during its progress. In order to prevent the contact of the roller 44 with the shoe from'defleeting the shoe to one side so as to endanger the supporting means for the last. I ro.-

vide a counter-balancing roller 46 in advance of the swinging roller 4-4, so that-any pressure by the swinging roller tending to deflect or cant the last will be opposed by said counter-balancing roller. This counter-bal anci ng roller is preferably mounted and supported in the same manner as'the foxing rollers 37. heretofore described.

The roller 44 carried by the swinging arm is preferably spool-shaped or curved, as shown in Fig. 16. so that the contacting surface thereof will conform as nearly as possible to the curve or contour of the toe of the shoe, so that the foxing over the curvedlocated to the right beyond the center line of the toe of the shoe so that as the shoe passes through the machine said roller will contact .with thetoe portion of the foxing on the-right-hand portion thereof, and as the shoe progresses said arm 48 will swing so that the roller 47 will wipe around the toe portion from the right to the left-hand side thereof. This arm is also provided with a contact roller 50 similar to the roller 45 heretofore described on the arm 43. The roller 47 in the end of the swinging arm 48 is also preferably spool-shaped for the same purpose as the roller 44. I'provide means whereby the foxing on the curved heel portion is rolled into place, which means will now be described: Rigid with the arm 43, heretofore described, and adapted to swing on the pivot 42 as a center, is an arm 51 v pi-votally connected as at 52 to one end of a link 53, the opposite end of which link is pivoted. at 54 to the plunger rod 55, adapted to reciprocate in a bearing sleeve 56 mounted on the right-hand member of the machine frame. This bearing box is provided with i a longitudinal slot 57 shown in dotted lines in Fig. 20, through which the pivot pin 54 for the end ofthe link projects, the arrangement being such that when the shoe engages the roller 44 on the arm 43 and the latter is' swung in the direction of the arrow, as described, the plunger arm 55 will be withdrawn within the bearing sleeve 56 out of the path of the toe portion of the shoe and held back until the heel portion of the foxing is adjacent the inner end of said plunger rod, and after the toe roller 44 has moved out of engagement with the heel portion of the shoe.

The earing box 56 is adjustably mounted so that elevation of the roller may be regu- I lated, anadjustable oint being provided be- .tweenthe bearing box and the main frame for this purpose, said joint including a clampingbolt 57 adapted to clamp the box in the desired position. The adjustable joint is carried on a plate 58 rotatably,

mounted on the frame and adapted to be clamped in the desired position thereon by a pivot bolt 59 so that the bearing box may be adjusted in a horizontal plane. At its inner end the arm 55 carries a yoke 60 having an adjustable, pivotal connection 61' thereto. and having journaled in this arm a cylindrical roller 62 inclined at the proper axis'to cause. the roller to properly contact with the entire surface of the heel foxing. The pivotal connection 61- between the yoke 60' and the arm 55 may consist of a clampingbolt, which permits of the yoke being swung to the desired position and then clamped to the arm.

The roller 62 is adapted to roll the heel foxing at the extreme right of the foxing to a. point to the left of the center line of the last, and on the opposite side of the machine I provide in connection with the roller 47 a similar roller arrangement to that just de-- scribed for rolling the heel foxing from the extremeleft-hand portion thereof to a point to the right of the center of the last, so that the entire heel foxing is rolled from end to 

